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Chaiten Volcano: Image of the Day

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Chaiten Volcano: Image of the Day


Published May 2, 2008


On May 2, 2008, Chile's Chaiten Volcano earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14815 erupted, sending plumes some 30 kilometers (18.6 miles) skyward, and blanketing some nearby areas in as much as 1.5 meters (5 feet) of volcanic ash. In the week that followed the initial eruption, local authorities established an evacuation zone with a radius of 50 kilometers (31 miles) around the volcano, warning holdouts that they would be evacuated by force, if necessary.

On February 21, 2000, the Enhanced Thematic Mapper on NASA's Landsat satellite captured the volcano in a state of calm. In this image, the volcano's caldera appears as a pale brown crater inside an ocean of lush green vegetation that covers the mountainous region. To the southwest is the nearby coastal town with the same name as the volcano. The satellite's view is obscured only by the occasional cloud.

The tranquility of the volcano apparent in this image has been the norm throughout recorded human history. The May 2008 eruption was a surprise -- Chaiten's first eruption in more than 9,000 years. Even when a volcano has been active in recent history, the surrounding areas often provide earthobservatory.nasa.gov/Study/NatHazards/ good reasons to settle, including fertile soils and milder climates arising from high altitudes (at least in the tropics).

  • Seach, J. (2008, May 7). www.volcanolive.com/volcanolive.html Volcano Live. Accessed May 9, 2008.
  • ABC News. (2008, May 7). www.abc.net.au/news/stories/2008/05/07/2237330.htm Locals flee as Chile volcano spits lava. Accessed May 7, 2008.
  • volcanism.wordpress.com/category/volcanoes/chaiten/ The Volcanism Blog. Accessed May 9, 2008.
  • Reuters. (2008, May 9). uk.reuters.com/article/scienceNews/idUKN0221354320080508 Chile gives volcano holdouts ultimatum to flee. Accessed May 9, 2008.
  • Hauser, R. (2001, August 28). earthobservatory.nasa.gov/Study/NatHazards/ Life on the Brink. NASA Earth Observatory. Accessed May 9, 2008.

NASA image created by Robert Simmon, using Landsat data provided by the University of Maryland's www.landcover.org/ Global Land Cover Facility. Text by Michon Scott.



Identifier chaiten_etm_2000052
Filename chaiten_etm_2000052_lrg.jpg
Creator NASA -- NASA Image Of The Day
Date 2008-05-02
Mediatype image
Rights Public Domain
Source http://earthobservatory.nasa.gov/IOTD/view.php?id=8735
Year 2008
Publicdate 2011-07-18 09:30:40
Addeddate 2011-07-18 09:30:40
Backup_location ia903701_29
Language English

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